A Noise Assessment Method for Flight Procedures Based on Hierarchical Weighting

Abstract

The invention discloses a flight procedure noise assessment method based on hierarchy-weight, and belongs to the field of flight procedure noise assessment. The flight procedure noise assessment method based on hierarchy-weight mainly comprises the following steps: constructing an aircraft track four-dimensional prediction model on the basis of a base of air craft data (BADA), and generating an aircraft four-dimensional flight path; establishing an aircraft noise assessment model through slope distance calculation, NPD (Noise-Power-Distance) data calculus of interpolation, correction computation and the like on the basis of the generated aircraft four-dimensional flight path; calculating area of influence of noises in various noise levels, volume and sensitive point noise influence time; and on the basis of the noise influence factors, establishing a comprehensive noise assessment model based on improved gray B-type association degree, and carrying out flight procedure noise comprehensive assessment by hierarchy-weight to obtain a single flight procedure noise comprehensive influence result and comparison results of noise comprehensive influence levels of different flight procedures. Therefore, design and corrosion on the flight procedures are guided in the aspect of reduction of noise influence.

Description

Technical field: [0001] The present invention relates to a method for evaluating flight procedure noise based on layered weighting. Specifically, the present invention relates to a comprehensive evaluation method based on layered weighting for flight procedure influence area, influence volume, and noise influence time of sensitive points, which belongs to flight procedure field of noise assessment. Background technique: [0002] In recent years, my country's aviation demand has continued to increase, and the scale of the airport has continued to expand. The frequent take-off and landing of aircraft has brought increasingly serious noise pollution to the residents around the airport. Shanghai Hongqiao, Guangzhou Baiyun and many other airports have encountered repeated protests from surrounding residents, and even conflicts broke out. "Several Opinions of the State Council on Promoting the Development of the Civil Aviation Industry" (Guo Fa [2012] No. 24) clearly states: "By ...

AI Technical Summary

Problems solved by technology

However, the existing flight procedure noise assessment mainly starts from the dimensions of ground noise distribution, maximum noise value, and noise-affected area. There are few studies that comprehensively consider ground noise, space noise, and sensitive point noise. The degree of influence and the inability to evaluate the pros and cons of flight procedures based on multi-dimensional noise influence

Images